document.write( "Question 39340This question is from textbook
\n" ); document.write( ": How do I do the following problem?\r
\n" ); document.write( "\n" ); document.write( "log 81=4
\n" ); document.write( " b^\r
\n" ); document.write( "\n" ); document.write( "Thank you for your help \n" ); document.write( "

Algebra.Com's Answer #24773 by Nate(3500) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"log%28b%2C81%29+=+4\"$
\n" ); document.write( " $\"81+=+%28b%5E4%29\"$
\n" ); document.write( " $\"81%5E%281%2F4%29+=+b%5E%284%2A%281%2F4%29%29%29\"$
\n" ); document.write( " $\"3+=+b\"$ or $\"-3+=+b\"$ \n" ); document.write( "

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